>> Documents reveal the search was called off when another hydrogen bomb was accidentally dropped near Florence, South Carolina.<<

Sounds like they kept making the same mistake over and over.

Lesson: DON'T USE LIVE NUKES FOR PRACTICE! Put a lead blob in there that weighs the same.

Also, If they locate it, then wouldn't it be possible to use remote robotics to dig it out and move it to a safe detonation distance? I am not saying robotics would be cheap, but neither is nuking a shore.